Founding AI Engineer

About the Role

Join an early-stage B2B SaaS team as its founding AI engineer, building the core of a real-time voice agent that conducts sales conversations and product demos. You will guide the agent's technical direction and help shape a product already serving paying customers.

What You'll Do

• Build the agent's reasoning, tool use, and memory, including ways to recover when live conversations go off script while meeting strict latency requirements.

• Develop evaluation pipelines and use real sales-call data to drive measurable improvements, including fine-tuning where useful.

• Improve the reliability of browser automation so the agent can run product demos while speaking with buyers.

• Ship product features end to end using TypeScript, Node.js, and Next.js.

• Work directly with customers and design partners to shape the product and set priorities for models, architecture, and capabilities.

What We're Looking For

• Four to seven years of experience as an AI engineer, with production ownership of AI agents across the development and deployment workflow.

• At least one year of experience with real-time or voice AI systems, such as WebRTC, LiveKit, streaming, or other low-latency applications.

• Hands-on experience in voice AI, AI sales, browser agents, or a fast-growing AI environment.

• Proficiency in TypeScript, Node.js, and Next.js, plus experience with LLM APIs, evaluations, observability, and cost optimization.

• Experience with browser automation tools such as Playwright is valuable.

• A CS degree or another technical background, such as mathematics, physics, or engineering.

• Customer-facing engineering experience, startup or founding-team experience, or background in sales technology is useful.

• Willingness and ability to work on-site in New York from the first day.

Compensation & Benefits

Base salary is $200,000 to $250,000 annually. Visa sponsorship is available. Equity details were not provided.

Location

On-site in New York, United States.